<template>
  <div>
    <el-table :data="tableData" :span-method="arraySpanMethod" border style="width: 100%">
      <el-table-column prop="id" label="ID" width="180"></el-table-column>
      <el-table-column prop="name" label="姓名"></el-table-column>
      <el-table-column prop="amount1" sortable label="数值 1"></el-table-column>
      <el-table-column prop="amount2" sortable label="数值 2"></el-table-column>
      <el-table-column prop="amount3" sortable label="数值 3"></el-table-column>
    </el-table>

    <el-table
      :data="tableData"
      :span-method="objectSpanMethod"
      border
      style="width: 100%; margin-top: 20px"
    >
      <el-table-column prop="id" label="ID" width="180"></el-table-column>
      <el-table-column prop="name" label="姓名"></el-table-column>
      <el-table-column prop="amount1" label="数值 1（元）"></el-table-column>
      <el-table-column prop="amount2" label="数值 2（元）"></el-table-column>
      <el-table-column prop="amount3" label="数值 3（元）"></el-table-column>
    </el-table>

  </div>
</template>

<script>
export default {
  data() {
    return {
      tableData: [
        {
          id: "12987122",
          name: "王小虎",
          amount1: "234",
          amount2: "3.2",
          amount3: 10
        },
        {
          id: "12987123",
          name: "王小虎",
          amount1: "165",
          amount2: "4.43",
          amount3: 12
        },
        {
          id: "12987124",
          name: "王小虎",
          amount1: "324",
          amount2: "1.9",
          amount3: 9
        },
        {
          id: "12987125",
          name: "王小虎",
          amount1: "621",
          amount2: "2.2",
          amount3: 17
        },
        {
          id: "12987126",
          name: "王小虎",
          amount1: "539",
          amount2: "4.1",
          amount3: 15
        },
        {
          id: "129871277",
          name: "王小虎a",
          amount1: "538",
          amount2: "4.12",
          amount3: 16
        }
      ]
    };
  },
  methods: {
    arraySpanMethod({ row, column, rowIndex, columnIndex }) {
      //多个表头对应同一个内容
      if (rowIndex % 2 === 0) {
        if (columnIndex === 0) {
          return [1, 2];
        } else if (columnIndex === 1) {
          return [0, 0];
        }
      }
    },

    objectSpanMethod({ row, column, rowIndex, columnIndex }) {
      if (columnIndex === 0) {
        if (rowIndex % 2 === 0) {
          return {
            rowspan: 2,
            colspan: 1
          };
        } else {
          return {
            rowspan: 0,
            colspan: 0
          };
        }
      }
    }
  }
};
</script>